Fan Filter Unit LFFU-A13 offers an air volume of 1000 m³/h, delivering effective laminar airflow performance by incorporating high-efficiency components and smart airflow management. It allows users to set parameters such as airflow velocity, timer settings, and filter status monitoring. The unit has low operational noise, enabling ultra-quiet performance at reduced fan speed. Our fan filter unit reduces reliance on central HVAC systems, cutting installation time, cost, and system complexity.
| Air Volume (m³/h) | 1000 |
| Fan Model | 400 |
| Average Wind Speeding (m/s) | 0.3 to 0.5 |
| External Static Pressure | 190 (10mm Aq) |
| Noise (dB) | 55 to 63 |
| Efficiency | 99.99% at 0.3µm |
| Frame | High quality aluminium |
| Initial Pressure Loss | 110 Pa at 0.45 m/s |
| Type | Aluminium turbofan |
| Vibration Coefficient (mm/s) | 0.2 to 0.5 |
| Material of Static Pressure Box | A3 cold plate spraying / galvanized steel plate / stainless steel |
| Power Supply | 220 / 50 V/Hz |
| Power Consumption | 100 to 300 W |
| Module Size (W×L×H) | 1175 × 575 × 230mm |
| Dimension (W×L×H) | 1170× 570× 69mm |
| Weight | 37 kg |
Integrated Test Ports
Motor Status Indicators
High Filtration Efficiency
Round Duct Interface
Multiple Size Options
Fan Filter Unit LFFU-A13 overcomes filter resistance via an internal fan, ensuring consistent, contaminant-free air delivery. It is widely used in semiconductor, electron, flat-panel display, disc-drive, manufacture and optics to prevent contamination.
Labtron Fan Filter Unit combines a fan and HEPA/ULPA filter to deliver controlled, laminar airflow that removes airborne particles and supports critical contamination control. These include features like variable speed control, low-noise operation, and energy-efficient EC motors. They have optional test ports or indicator lights. Their compact and adjustable FFUs reduce dependence on central HVAC systems, thereby lowering installation costs and time. Our fan filter units are installed in ceiling or floor grids of cleanrooms, laboratories, pharmaceutical facilities, and semiconductor plants.





Labtron’s LFFU-A13 can include pressure sensors, airflow meters, smoke, and fire alarms to preserve environmental integrity and alert operators early to deviations. Smart units integrate with BMS or IoT, using protocols like BACnet, Modbus, or MQTT to log performance data, schedule predictive maintenance, and handle zoning control across rooms. Remote monitoring, touchscreen dashboards, and mobile apps offer intuitive user control and compliance logging, improving efficiency and lowering downtime
Fan Filter Unit LFFU-A13 with precision-balanced airfoil blades, acoustic insulation, and vibration-dampening mounts can operate under 50?dB(A)—ideal for sensitive environments like labs and medical facilities. Additional noise reduction can be achieved via exhaust silencers, reduced fan speeds, or selecting lower-speed DC motors; operations above ISO class threshold (55–65?dB) may impair focus and staff comfort. Lowering fan speed not only cuts acoustic emissions, but extends motor and filter lifespan through reduced wear.
Labtron supplies premium models of Fan Filter Unit LFFU-A13.Proper configuration requires matching fan PQ curves with filter resistance curves to ensure optimal airflow and consistent pressure drop throughout the filter lifecycle. Operational points should ideally lie at the intersection of both curves—e.g. fan delivering where filter’s full-load resistance lies. Variable-speed EC fans accommodate resistance changes over time, maintaining performance more reliably than fixed-speed PSC units
Labtron’s Fan Filter Unit LFFU-A13 are expanding beyond traditional cleanrooms into sectors like battery manufacturing, aerospace, food processing, operating theaters, and even public spaces—demanding features like antimicrobial filters, VOC removal, washdown compatibility, UV sterilization, and corrosion-resistant finishes. These units are now offered in tiered models, from basic energy-efficient ventilation to fully featured, digitally monitored systems tailored to sector-specific standards and budgets.
Plan for maintenance early: ensure adjacent ceiling access hatches that enable motor or filter replacement without disturbing multiple units or requiring full cleanroom shutdowns. Install test ports above LFFU-A13 (before ceiling grid placement) to allow certification technicians to conduct smoke or particle measurements without disassembling units—essential under IEST or USP?797/800 guidelines. Coordinating these infrastructure elements during design avoids costly retrofits and regulatory non-compliance
Labtron’s Fan Filter Unit (FFU) is a modular air-cleaning system that integrates a fan, pre-filter, and HEPA (or ULPA) filter into a ceiling grid unit. It draws contaminated room air through the pre-filter, then pushes it through the high-efficiency filter, supplying downward laminar or turbulent airflow to maintain ISO-class cleanliness. These units are essential in cleanrooms and microenvironments, enabling precise control of air supply directly above the workspace. FFUs operate either independently or as part of a larger HVAC system, often arranged in arrays to meet air change-per-hour requirements for ISO classes.
Labtron’s FFUs are typically built in standard ceiling grid dimensions such as 2×2?ft, 2×3?ft, and 2×4?ft, though custom sizes are possible. These units come fitted with HEPA filters as standard—with 99.99% efficiency offer ULPA options to achieve up to 99.999% efficiency for ultra-critical applications Prefilter stages, extend the life of the primary filters. Some FFUs feature advanced designs like knife-edge filters or PTFE media to meet tight sealing and contamination control needs.
Labtron’s Fan Filter Units use either PSC (permanent split capacitor) or ECM (electronically commutated) motors. PSC motors offer fixed or stepped speed control, providing reliable airflow at lower cost. ECM motors, in contrast, enable variable-speed control, smoother airflow, more precise pressure maintenance, and significant energy reductions—often 30–50% savings over PSC units. This not only reduces long-term operational costs but also mitigates noise and extends motor lifespan.
The number of FFUs needed depends on room size, desired air changes per hour (ACH), and ISO cleanroom class. For example, ISO 5 often requires hundreds of units operating together to maintain 500–750 ACH, while lower classes need fewer. Each FFU typically delivers 600–1,000 CFM, so designers calculate unit count based on airflow volume and room volume. This ensures uniform air velocity across the ceiling to sustain laminar flow and positive pressure.
Yes—advanced FFUs, especially ECM models, support integration with building management systems (BMS) and can be controlled via protocols like Modbus or BACnet. They can feature auto-control cards and sensors to modulate fan speed and airflow in real time, based on pressure or particulate readings. This networked capability allows centralized monitoring and optimization of hundreds of units across cleanrooms, improving energy efficiency and ensuring environmental compliance.
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Labtron Equipment Ltd., Quatro House, Lyon Way, Camberley, Surrey GU16 7ER United Kingdom
Email: info@labtron.com Whatsapp: +44 20 8004 3587 Phone: +44 2080 043608